An eye implant could help the blind read again. Trials found that 84 per cent participants could recognise letters, numbers, and words using the device. The procedure begins with removal of the eye’s vitreous gel. A microchip is then inserted beneath the retina. Patients use augmented-reality glasses linked to a waist-worn computer. The glasses’ camera captures visual scenes and projects them on the chip as a beam. AI converts these to electrical signals that travel through the optic nerve to the brain, creating visual perception.

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